US7412860B1 - Key blank and key - Google Patents

Key blank and key Download PDF

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Publication number
US7412860B1
US7412860B1 US11/694,097 US69409707A US7412860B1 US 7412860 B1 US7412860 B1 US 7412860B1 US 69409707 A US69409707 A US 69409707A US 7412860 B1 US7412860 B1 US 7412860B1
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US
United States
Prior art keywords
blade
key
section
grooves
edge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
US11/694,097
Other languages
English (en)
Inventor
Peter H. Field
Steve POFF
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Assa Abloy High Security Group Inc
Original Assignee
Medeco Security Locks Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medeco Security Locks Inc filed Critical Medeco Security Locks Inc
Assigned to MEDECO SECURITY LOCKS, INC. reassignment MEDECO SECURITY LOCKS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FIELD, PETER H., MR., POFF, STEVE, MR.
Priority to US11/694,097 priority Critical patent/US7412860B1/en
Priority to DK08727202.7T priority patent/DK2142731T3/en
Priority to PL08727202T priority patent/PL2142731T3/pl
Priority to KR1020097022594A priority patent/KR101520087B1/ko
Priority to BRPI0809490-0A priority patent/BRPI0809490B1/pt
Priority to NZ580639A priority patent/NZ580639A/en
Priority to AU2008233117A priority patent/AU2008233117B2/en
Priority to MX2009010566A priority patent/MX2009010566A/es
Priority to EP08727202.7A priority patent/EP2142731B1/en
Priority to CA 2682576 priority patent/CA2682576C/en
Priority to PT87272027T priority patent/PT2142731T/pt
Priority to ES08727202.7T priority patent/ES2641273T3/es
Priority to PCT/US2008/004078 priority patent/WO2008121336A1/en
Priority to US12/141,427 priority patent/US7552608B2/en
Publication of US7412860B1 publication Critical patent/US7412860B1/en
Application granted granted Critical
Priority to US12/537,645 priority patent/US7788956B2/en
Priority to IL201213A priority patent/IL201213A/en
Priority to EG2009091442A priority patent/EG25871A/xx
Priority to CO09122567A priority patent/CO6270161A2/es
Assigned to ASSA ABLOY HIGH SECURITY GROUP INC. reassignment ASSA ABLOY HIGH SECURITY GROUP INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: MEDECO SECURITY LOCKS, INCORPORATED
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E05B19/0029—Key profiles characterized by varying cross-sections of different keys within a lock system
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0053—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in for use with more than one key, e.g. master-slave key
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7446—Multiple keys
    • Y10T70/7463—Master- and change-key
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7503—Tumbler and ward type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/778—Operating elements
    • Y10T70/7791—Keys
    • Y10T70/7842—Single shank or stem
    • Y10T70/7859—Flat rigid
    • Y10T70/7864—Cylinder lock type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/778—Operating elements
    • Y10T70/7791—Keys
    • Y10T70/7842—Single shank or stem
    • Y10T70/787—Irregular nonplanar or undulated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/778—Operating elements
    • Y10T70/7791—Keys
    • Y10T70/7881—Bitting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7915—Tampering prevention or attack defeating
    • Y10T70/7932—Anti-pick
    • Y10T70/7938—Guard ward
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/80—Parts, attachments, accessories and adjuncts
    • Y10T70/8432—For key-operated mechanism
    • Y10T70/8595—Key guides, internal

Definitions

  • This invention relates to improvements in keys and key blanks, particularly with regard to defining the profiles of keys and key blanks using the shapes of ridges or grooves in a generally flat rectangular key blade profile.
  • the shape of the key blank and key determines the shape of the keyway in a lock cylinder plug.
  • the lock cylinders art is requiring higher and higher security and there is a need in the art for the development of a shape or profile of a cross section of key and corresponding shape of the keyway in the cylinder plug to accommodate a hierarchical lock providing high security.
  • the shape of the keyway is the first barrier that rejects or filters an unauthorized key in attempt to operate the lock cylinder.
  • Taylor discloses a key blank design that offers an economically simple solution to the problem of having a key that moves too freely in the keyhole. This offers a very minimal keyway shape in the plug and key profile in the blank.
  • Taylor teaches a unique but limited master keying technique that uses a Y shaped key section in a plug that allows two differently shaped key profiles to contact their own areas of the non rotating tumbler pins.
  • Donavan discloses a method of expanding the number of key sections, thus increasing the available size of lock systems, by dividing the key blank height into various areas and using consistent warding techniques at these locations to develop hierarchical keyways or key profiles. This increases the system size of pin tumbler cylinders. The bittings of one key can be repeated on a different key blank, configured with a different key profile, and the cylinders into which these individual keys fit can also be operated by a higher level key designed to insert into both of the keyways.
  • Noack discloses an arrangement of key section warding that provides improved wear on the key and the key contact area on the tip of the locking pins. In addition it provides a narrow cross sectional width under the bitting area, thus making it difficult to manipulate pick tools under the tumbler pins.
  • M. Noujoks teaches a method of designing key section warding where both faces of the keys are provided with alternating ridges and grooves. It utilizes a master key blank that has all the grooves of the series but not the ridges, while the key blanks of a lower hierarchical level have varying ridges.
  • Prunbauer discloses more methods of designing key section warding where the master key will fit into the subordinate keyways but the lower keys will not fit into the master keyways.
  • the ridges and grooves defining the key section are of a rectangular cross-section shape, and the outwardly projecting variable ridge on the subordinate key extends laterally beyond any of the other variable ridges.
  • the subordinate key is thicker at its further ridge than the master key is at any location.
  • the master key is formed of a zigzag shape, that is with its opposite sides formed of a plurality of planar facets each of which is substantially parallel to a respective planar facet on the other side.
  • Steinbrink teaches another unique method of designing key sections where the longitudinal grooves on both sides of the key blank are formed with bottom faces that lay substantially along the arc of a circle.
  • Tietz discloses a method of designing master key section warding that incorporates an invariable or family profile near the bitting area on the blank, and the variations defining the individual key sections are located near the spline or bottom edge of the blank. Additionally there are at least two profile formations that cross a center line in the key blank, one ridge is extending beyond the surface of the blank, and the variations are made with longitudinal grooves having rectangular cross sections.
  • Errani illustrates a key section design that has a undercut groove shape making it very difficult to manipulate a pick tool in the keyway of the plug.
  • the undercut groove is formed by means of cutters having their rotational axis inclined in relation to the sides of the key blank.
  • Stefanescu teaches a method of designing master key section warding that utilizes a key blank with a T-shaped cross sectional area with all the profile ribs having specific curvilinear cross sectional contours, with rounded front and flank portions.
  • Kruhn discloses a method of designing lock and key warding that incorporates specific perpendicular groove surfaces on one side of the key section, and slanting surfaces on the other side that are positioned in a relationship designed to trap, or limit the motion of a picking tool inserted into the key way.
  • This invention provides specific parameters for key section profiles and the corresponding key ways in a cylinder plug that allows for the development of many exclusive and non-interchangeable hierarchical master key systems.
  • the key blade is considered separately for three vertical sections from the bottom edge of the blade up to the bitting surface edge of the blade.
  • Each of the three sections is contoured or formed with specific variations of ridges and grooves that establish the key blank's position within a hierarchical system or systems.
  • the bottom most section has a registry groove for the positioning of any secondary side milling operations used in the manufacture of the blank. This registry groove also allows for exact positioning of the blank in a key cutting or bitting machine.
  • a second vertical section of the blade has at least one undercut longitudinal groove on at least one side of the blade.
  • the location and shape of the undercut groove in the second section determines the primary family of the hierarchical system.
  • the third section of the blade, just below the bitting surface may be divided vertically into two sides. One of these sides has a variation of the key section profile determined by using longitudinal grooves of curved shaped forms that are shifted up and down the side of the blade to create the necessary variations. The position and curved form of the profiles on this side determines the secondary and subgroups in the family of the hierarchical system.
  • the variations in the key section profiles are determined by using longitudinal grooves having substantially rectangular or straight angular cross sections that vary in depth into the side of the blade.
  • the position and depth of the angular profiles on this third section determine the individual location in the subgroup in the hierarchical system.
  • FIG. 1 is a prospective view of a key blank of this invention.
  • FIG. 2 is a cross-sectional view taken along line a-a of FIG. 1 and enlarged.
  • FIGS. 3 through 9 are cross-sectional views of other key configurations on the sides of the key blanks of this invention that illustrate the features of this invention.
  • FIG. 10 is an illustrative diagram of a simple three level hierarchical structure of keyways.
  • FIG. 1 shows a prospective view of a key blank according to this invention.
  • the key blank has a head or bow 1 for holding and turning the key and a blade 2 for inserting into a keyway of a lock cylinder.
  • the keyway of the lock cylinder has a profile matching the profile of the key blade.
  • the key blade has a top surface 3 into which key bittings (not shown) are cut to position elements such as pin tumblers in a lock cylinder as is well known in the art, see for example the patent to Medeco Security Locks U.S. Pat. No. 5,419,168.
  • the blank has a bottom surface 4 and an end tip 5 .
  • the end tip 5 may have a stop or other configuration; see for example U.S. Pat. No. 1,679,558.
  • FIG. 2 shows the top of the key blank blade 3 and the bottom of the key blank blade 4 and as shown in phantom lines three different sections. Section A, B, C and C′. As shown, Section A is adjacent to the bottom of the blade, Section C and C′ are adjacent to the top of the blade and Section B is in between Section A and Section C and C′.
  • Section A contains a groove 6 extending the length of the blade for registry purposes.
  • registry groove 6 is used to provide a location for further operations relative to such groove.
  • Section B there is an undercut groove 7 also extending the length of the blade.
  • the undercut groove may be used to provide a first level in the hierarchical scheme for hierarchical master keying.
  • the area above the undercut groove is divided into the two sides C and C′ and the shapes and configurations of the grooves and ridges extending along these two sides are established by distinctly different parameters.
  • the shapes in Section C are determined by a base curvilinear shape 110 on which is overlaid a number of partial circular curves 121 , 122 , 123 , 124 , 125 and 126 . These curves are all centered along the baseline 110 .
  • the curves can project either outwardly as convex ridges or inwardly as concave grooves from the baseline creating either curved longitudinal ridges or curved longitudinal grooves along the side of the blank of Section C and below the bitting area 3 .
  • Similar families of curved shapes can be determined by variations in the base curvilinear shape 110 , i.e., a different curvilinear shape 110 can function as a center line for the various circular curves. Subgroups of these secondary families may be predetermined by the presence of either curved ridges, e.g., 122 , 124 , 125 , or curved grooves, e.g., 121 , 123 , 126 , and also by moving the base curvilinear shape 110 either up or down the side of the blank in relation to the registry groove 6 in Section A.
  • the shapes of the side of the key blade in Section C′ are determined by providing rectangular sections such as 134 ′ and straight angular shapes such as 131 , 132 ′ and 133 and by varying the depths of these shapes into the side of the blank. There are a large number of other locations to provide grooves in Section C′ on this side of the blank, for example areas 135 ′′, 136 ′′ and 137 ′′. The size of the grooves and the depths of the grooves that are formed in Section C′ on this side of the blank determine the individual position of the key cut from the key blank in the family hierarchical structure.
  • FIG. 3 shows the same cross-sectional view of the key blank and illustrates the base curve 110 positioned vertically in relation to registry groove 6 to produce a profile 10 in Section C on one side of the blade.
  • the rectangular and straight angular shapes in Section C′ on the other side of the blade has variations, as compared to the key blank of FIG. 2 , which define profile 50 .
  • FIG. 4 illustrates another key blank variation in which the base curve 110 is shifted vertically towards the top of the key blank in relation to the registry groove 6 so it is higher than the base curve 110 of FIG. 3 , producing a profile indicated at 11 .
  • the other side of the key blank in FIG. 4 in Section C′ has a profile 50 showing the differences in cutting grooves and producing ridges.
  • FIG. 5 is a further cross-sectional view of the key blank illustrating the base curve 110 producing profile 12 on Section C of the key blank and profile 50 on the other side in Section C′ of the key blank.
  • Profile 12 differs from profile 10 in FIG. 3 and profile 11 in FIG. 4 in that the base curve 110 is shifted vertically down from the top of the key blank relative to the registry groove 6 so it is lower than the base curve 110 of FIG. 3 .
  • FIG. 6 is a cross-sectional view of the key blank illustrating a profile 10 in Section C and profile 51 in Section C′.
  • Profile 51 differs from profile 50 in that groove 132 projects deeper into the side of the blank than groove 132 ′ of FIG. 3 .
  • FIG. 7 is a cross-sectional view of a key blank illustrating profile 10 on Section C of the key blank and profile 62 on the other side in Section C′.
  • Profile 62 differs in that groove 141 projects into the side of the blank at a different straight angular shape than groove 131 in FIG. 2 .
  • FIG. 8 is a further illustration of a cross-sectional view of a key blank illustrating a profile 23 in one side of the bitting area of the blade in Section C and profile 71 on the other side of the blade in Section C′.
  • the base curve 110 is the same as shown in FIG. 2 , however the curved groove 123 is changed to a curved ridge 123 ′ and the curved ridge 122 is changed to a curved groove 122 ′.
  • These changes produce a different sub-grouping of the secondary families of the key blank hierarchical structure.
  • Section C′ of the blank in FIG. 8 there is no groove in the area 132 ′′ and there is a straight angular groove 135 .
  • the straight angular grooves 131 , 133 and 135 determine the individual position of the blank in the hierarchical structure.
  • FIG. 9 is a cross-sectional view of another variation of the key blank showing profile 31 in Section C and profile 81 in Section C′.
  • Base curve 210 of profile 31 determines the location of partial circular curves 221 - 227 that extend as curve grooves 224 or curve ridges 221 , 222 , 223 , 225 , 226 , 227 along the length of the key blade.
  • Secondary families of the curved shapes are determined by variations in the base curvilinear shape. The subgroups of these secondary families are determined by the presence of either curved ridges or curved grooves and by the position of the base curvilinear shape up or down the side of the blank in relation to the registry groove 6 in Section A.
  • profile 81 there are only two cut grooves 151 and 153 showing further possible variations.
  • FIG. 10 is an illustrative diagram of a simple three-level hierarchical structure of keyways.
  • a key blank that is configured to fit exactly in the top most key section 1000 is structured to also fit in all of the subordinate keyways.
  • a key blank that is configured to fit exactly in one of the secondary level keyways, e.g., 1300 will also fit into all of the subordinate keyways 1310 , 1320 , 1330 of secondary level keyway 1300 , but not into any of the third level keyways 1110 , 1120 , 1130 of secondary keyway 1100 or 1210 , 1220 , 1230 of secondary keyway 1200 .
  • the keys that will fit in the lowest level of the keyways Level 3 will not fit in any of the higher level keyways. This fit or not fit determination is accomplished not by the bitting at the top of the keys as is typical in prior art (although such could be used to further provide hierarchical structure) but, is provided by the grooves extending along the sides of the key blank as described above.

Landscapes

  • Lock And Its Accessories (AREA)
  • Milling Processes (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Credit Cards Or The Like (AREA)
US11/694,097 2007-03-30 2007-03-30 Key blank and key Active US7412860B1 (en)

Priority Applications (18)

Application Number Priority Date Filing Date Title
US11/694,097 US7412860B1 (en) 2007-03-30 2007-03-30 Key blank and key
PT87272027T PT2142731T (pt) 2007-03-30 2008-03-28 Chave em bruto e chave
PCT/US2008/004078 WO2008121336A1 (en) 2007-03-30 2008-03-28 Key blank and key
KR1020097022594A KR101520087B1 (ko) 2007-03-30 2008-03-28 키이 블랭크 및 키이
BRPI0809490-0A BRPI0809490B1 (pt) 2007-03-30 2008-03-28 Molde de chave, método de fornecer um sistema de bloqueio hierárquivo, lâmina de chave e método para formar uma chave para um sistema de bloqueio hierárquico
NZ580639A NZ580639A (en) 2007-03-30 2008-03-28 Key blank for cutting a key for a hierarchial lock system
AU2008233117A AU2008233117B2 (en) 2007-03-30 2008-03-28 Key blank and key
MX2009010566A MX2009010566A (es) 2007-03-30 2008-03-28 Preforma de llave y llave.
EP08727202.7A EP2142731B1 (en) 2007-03-30 2008-03-28 Key blank and key
CA 2682576 CA2682576C (en) 2007-03-30 2008-03-28 Key blank and key
DK08727202.7T DK2142731T3 (en) 2007-03-30 2008-03-28 KEY TOPICS AND KEY
ES08727202.7T ES2641273T3 (es) 2007-03-30 2008-03-28 Preforma de llave y llave
PL08727202T PL2142731T3 (pl) 2007-03-30 2008-03-28 Klucz surowy i klucz
US12/141,427 US7552608B2 (en) 2007-03-30 2008-06-18 Lock, key blank, and key of a hierarchical lock system
US12/537,645 US7788956B2 (en) 2007-03-30 2009-08-07 Lock, key blank, and key of a hierarchical lock system
IL201213A IL201213A (en) 2007-03-30 2009-09-29 Key blank and key
EG2009091442A EG25871A (en) 2007-03-30 2009-09-30 A key blank or key having a blade with opposed sides
CO09122567A CO6270161A2 (es) 2007-03-30 2009-10-29 Blanco de llave o llavecon porcion ranurada para registro, otra porcion ranurada para llave maestra jerarquica y dos porciones para variaciones de llave maestra adicionales y combinaciones diferentes.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/694,097 US7412860B1 (en) 2007-03-30 2007-03-30 Key blank and key

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/141,427 Continuation-In-Part US7552608B2 (en) 2007-03-30 2008-06-18 Lock, key blank, and key of a hierarchical lock system

Publications (1)

Publication Number Publication Date
US7412860B1 true US7412860B1 (en) 2008-08-19

Family

ID=39539566

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/694,097 Active US7412860B1 (en) 2007-03-30 2007-03-30 Key blank and key

Country Status (15)

Country Link
US (1) US7412860B1 (pt)
EP (1) EP2142731B1 (pt)
KR (1) KR101520087B1 (pt)
AU (1) AU2008233117B2 (pt)
BR (1) BRPI0809490B1 (pt)
CA (1) CA2682576C (pt)
CO (1) CO6270161A2 (pt)
DK (1) DK2142731T3 (pt)
ES (1) ES2641273T3 (pt)
IL (1) IL201213A (pt)
MX (1) MX2009010566A (pt)
NZ (1) NZ580639A (pt)
PL (1) PL2142731T3 (pt)
PT (1) PT2142731T (pt)
WO (1) WO2008121336A1 (pt)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080250830A1 (en) * 2007-03-30 2008-10-16 Medeco Security Locks, Inc. Lock, key blank, and key of a hierarchical lock system
AU2008233117B2 (en) * 2007-03-30 2011-08-25 Medeco Security Locks, Inc. Key blank and key
US20110289989A1 (en) * 2010-05-31 2011-12-01 C. Ed. Schulte Gesellschaft Mit Beschrankter Haftung Zylinderschlossfabrik Method for profiling a flat key, and flat key produced according to the method
US20230056247A1 (en) * 2020-05-12 2023-02-23 Evva Sicherheitstechnologie Gmbh Cross-sectional profile for a flat key or the key channel of a cylinder lock

Citations (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US263244A (en) 1882-08-22 Warren h
US420174A (en) 1890-01-28 Thomas taylor
US567305A (en) 1896-09-08 Master-key-pin lock
US608069A (en) 1898-07-26 Cylinder-lock
US1679558A (en) 1923-05-23 1928-08-07 Frank E Best Inc Key
US3499304A (en) 1966-04-21 1970-03-10 Schulte C E Gmbh Flat keys for cylinder locks
US3499302A (en) 1967-03-01 1970-03-10 Roy C Spain Cylinder lock
US3722240A (en) 1971-01-25 1973-03-27 R C Spain Cylinder lock
US4103526A (en) 1975-03-05 1978-08-01 Emhart Industries, Inc. Pin tumbler lock
US4168617A (en) 1976-01-28 1979-09-25 Evva-Werk Spezialerzeugung Von Zylinder- Und Sicherheitsschlossern Gesellschaft Mbh & Co. Kommanditgesellschaft Lock system
DE2828343A1 (de) 1978-06-28 1980-01-10 Perkut B R Drehzylinderschloss
US4356713A (en) 1979-07-10 1982-11-02 Gkn Stenman, Ab Cylinder lock and key
US4368629A (en) 1976-01-28 1983-01-18 Evva Werk Spezialerzeugung von Zylinderschlo/ssern Gesellschaft MbH & Co. Kommanditgesellschaft Lock system
US4393673A (en) 1979-07-10 1983-07-19 Gkn Stenman Ab Cylinder lock
US4416128A (en) 1981-06-09 1983-11-22 C. Ed. Schulte Gmbh Cylinder lock
US4635455A (en) 1985-07-19 1987-01-13 Medeco Security Locks, Inc. Cylinder lock
US4653298A (en) 1983-11-05 1987-03-31 Zeiss Ikon Ag Lock-key system
US4683740A (en) 1984-06-01 1987-08-04 Costruzioni Italiane Serrature Affini C.I.S.A. S.P.A. Cylinder lock with key, incorporating a picking preventing means
USD325160S (en) * 1991-03-29 1992-04-07 Best Lock Corporation Portion of a key blade blank
USD327635S (en) * 1991-03-29 1992-07-07 Best Lock Corporation Portion of a key blade blank
US5287712A (en) * 1991-07-27 1994-02-22 Emhart, Inc. Locking arrangement consisting of key and lock cylinder
US5289709A (en) 1991-10-24 1994-03-01 Medeco Security Locks, Inc. Pin tumblers and corresponding keys for cylinder locks
US5419168A (en) 1991-10-24 1995-05-30 Medeco Security Locks, Inc. Hierarchical cylinder lock and key system
US5490405A (en) * 1993-03-25 1996-02-13 Abloy Security Ltd Oy Cylinder lock--key--combination
USD368846S (en) * 1995-03-23 1996-04-16 Fort Lock Corporation Portion of a key blade blank
US5615565A (en) 1995-09-19 1997-04-01 Medeco Security Locks, Inc. Keys for cylinder locks
US5715717A (en) 1993-12-30 1998-02-10 Widen; Bo Cylinder lock and key combination including a profiled key
US6145357A (en) 1997-02-27 2000-11-14 C. Ed. Schulte Gmbh Flat key for a tumbler-containing locking cylinder of a lock apparatus
US6477875B2 (en) 2001-02-06 2002-11-12 Medeco Security Locks, Inc. Rotating pin tumbler side bar lock with side bar control
US6851292B2 (en) 2000-08-08 2005-02-08 IKON Aktiengesellschaft Präzisionstechnik Lock-key system
US6945082B2 (en) 2001-02-06 2005-09-20 Medeco Security Locks, Inc. Key blank, key and master keying system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1928504B2 (de) * 1969-06-04 1977-04-07 Fa. Aug. Winkhaus, 4404 Telgte Sperrippen- und/oder nutenvariation an flachschluesselseitenflaechen fuer zu einer schliessanlage zusammenfassbare stiftzylinderschloesser
DE19548426C2 (de) * 1995-12-22 2003-12-11 Schliesanlagen Gmbh Pfaffenhai Zylinderschloß für Schließanlagen
AT8146U1 (de) 2004-08-03 2006-02-15 Kaba Gmbh Schliesszylinder, flachschlüssel sowie verfahren zu dessen herstellung
US7412860B1 (en) * 2007-03-30 2008-08-19 Medeco Security Locks, Inc. Key blank and key

Patent Citations (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US263244A (en) 1882-08-22 Warren h
US420174A (en) 1890-01-28 Thomas taylor
US567305A (en) 1896-09-08 Master-key-pin lock
US608069A (en) 1898-07-26 Cylinder-lock
US1679558A (en) 1923-05-23 1928-08-07 Frank E Best Inc Key
US3499304A (en) 1966-04-21 1970-03-10 Schulte C E Gmbh Flat keys for cylinder locks
US3499302A (en) 1967-03-01 1970-03-10 Roy C Spain Cylinder lock
US3722240A (en) 1971-01-25 1973-03-27 R C Spain Cylinder lock
US4103526A (en) 1975-03-05 1978-08-01 Emhart Industries, Inc. Pin tumbler lock
US4168617A (en) 1976-01-28 1979-09-25 Evva-Werk Spezialerzeugung Von Zylinder- Und Sicherheitsschlossern Gesellschaft Mbh & Co. Kommanditgesellschaft Lock system
US4368629A (en) 1976-01-28 1983-01-18 Evva Werk Spezialerzeugung von Zylinderschlo/ssern Gesellschaft MbH & Co. Kommanditgesellschaft Lock system
DE2828343A1 (de) 1978-06-28 1980-01-10 Perkut B R Drehzylinderschloss
US4356713A (en) 1979-07-10 1982-11-02 Gkn Stenman, Ab Cylinder lock and key
US4393673A (en) 1979-07-10 1983-07-19 Gkn Stenman Ab Cylinder lock
US4416128A (en) 1981-06-09 1983-11-22 C. Ed. Schulte Gmbh Cylinder lock
US4653298A (en) 1983-11-05 1987-03-31 Zeiss Ikon Ag Lock-key system
US4683740A (en) 1984-06-01 1987-08-04 Costruzioni Italiane Serrature Affini C.I.S.A. S.P.A. Cylinder lock with key, incorporating a picking preventing means
US4635455A (en) 1985-07-19 1987-01-13 Medeco Security Locks, Inc. Cylinder lock
USD325160S (en) * 1991-03-29 1992-04-07 Best Lock Corporation Portion of a key blade blank
USD327635S (en) * 1991-03-29 1992-07-07 Best Lock Corporation Portion of a key blade blank
US5287712A (en) * 1991-07-27 1994-02-22 Emhart, Inc. Locking arrangement consisting of key and lock cylinder
US5570601A (en) 1991-10-24 1996-11-05 Medeco Security Locks, Inc. Hierarchical cylinder lock and key system
US5289709A (en) 1991-10-24 1994-03-01 Medeco Security Locks, Inc. Pin tumblers and corresponding keys for cylinder locks
US5419168A (en) 1991-10-24 1995-05-30 Medeco Security Locks, Inc. Hierarchical cylinder lock and key system
US5490405A (en) * 1993-03-25 1996-02-13 Abloy Security Ltd Oy Cylinder lock--key--combination
US5809816A (en) 1993-12-30 1998-09-22 Widen; Bo Cylinder lock and key combination including a profiled key
US5715717A (en) 1993-12-30 1998-02-10 Widen; Bo Cylinder lock and key combination including a profiled key
USD368846S (en) * 1995-03-23 1996-04-16 Fort Lock Corporation Portion of a key blade blank
US5615565A (en) 1995-09-19 1997-04-01 Medeco Security Locks, Inc. Keys for cylinder locks
US6023954A (en) 1995-09-19 2000-02-15 Medeco Security Locks, Inc. Keys for cylinder locks
US6145357A (en) 1997-02-27 2000-11-14 C. Ed. Schulte Gmbh Flat key for a tumbler-containing locking cylinder of a lock apparatus
US6851292B2 (en) 2000-08-08 2005-02-08 IKON Aktiengesellschaft Präzisionstechnik Lock-key system
US6477875B2 (en) 2001-02-06 2002-11-12 Medeco Security Locks, Inc. Rotating pin tumbler side bar lock with side bar control
US6945082B2 (en) 2001-02-06 2005-09-20 Medeco Security Locks, Inc. Key blank, key and master keying system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080250830A1 (en) * 2007-03-30 2008-10-16 Medeco Security Locks, Inc. Lock, key blank, and key of a hierarchical lock system
US7552608B2 (en) * 2007-03-30 2009-06-30 Medeco Security Locks, Inc. Lock, key blank, and key of a hierarchical lock system
US20090301148A1 (en) * 2007-03-30 2009-12-10 Medeco Security Locks, Inc. Lock, key blank, and key of a hierarchical lock system
US7788956B2 (en) 2007-03-30 2010-09-07 Medeco Security Locks, Inc. Lock, key blank, and key of a hierarchical lock system
AU2008233117B2 (en) * 2007-03-30 2011-08-25 Medeco Security Locks, Inc. Key blank and key
US8931316B2 (en) * 2010-03-31 2015-01-13 C. Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschloßfabrik Method for profiling a flat key, and flat key produced according to the method
US20110289989A1 (en) * 2010-05-31 2011-12-01 C. Ed. Schulte Gesellschaft Mit Beschrankter Haftung Zylinderschlossfabrik Method for profiling a flat key, and flat key produced according to the method
US20230056247A1 (en) * 2020-05-12 2023-02-23 Evva Sicherheitstechnologie Gmbh Cross-sectional profile for a flat key or the key channel of a cylinder lock
US11661764B2 (en) * 2020-05-12 2023-05-30 Evva Sicherheitstechnologie Gmbh Cross-sectional profile for a flat key or the key channel of a cylinder lock

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AU2008233117B2 (en) 2011-08-25
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CA2682576A1 (en) 2008-10-09
IL201213A0 (en) 2010-05-31
CO6270161A2 (es) 2011-04-20
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DK2142731T3 (en) 2017-10-23
PT2142731T (pt) 2017-10-04
CA2682576C (en) 2014-11-18
BRPI0809490B1 (pt) 2018-06-19
EP2142731B1 (en) 2017-06-28
IL201213A (en) 2012-06-28
KR20090128517A (ko) 2009-12-15
ES2641273T3 (es) 2017-11-08
PL2142731T3 (pl) 2018-01-31
WO2008121336A1 (en) 2008-10-09
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